Carton-machine.



WN wN 3 Sheets-Sheet I.

Y QN mi Patented I une 24, i902.

W. G. CHAPIN.

GARTUN MACHINE.

(Application med Nov. 13, 1901.

No. 7os,|s4. Patented :une 24, |902.

w. G. cHAPm. y

CAHTN MACHINE.

` (Application med Nov. 13, 1901.)

'(No Model.) 3 Sheets-Sheet 2.

WMM/Leases 3 ewboz.'

U elften/w13 No. 703,184. 7Pv'njtms June 24, |902.

' w. G. cHAPlN.

CABTUN MACHINE.v

(Applcation led Nov. 18, 1901.)

3 Sheets-Sheet 3.

(Ilo Model.)

album m Witness@ UNITED STATES PATENT OFFICE.

'WTLLIAM e. OI-IAPIN, OF' BROOKLYN, NEW YORK, AssIeNOR TO THE TIIOMP-SON a NORRIs COMPANY, A CORPORATION or NEW JERSEY.

CARTON-MACHINE.

SPECIFICATION forming part of Letters Patent No. 703,184, dated T une24, 1902.

Application filed November 13,1901. Serial No. 82,081. (No model.)

To all whom, zit may concern.-

Be it known that I, WILLIAM G. CHAPIN, a citizen of the UnitedStates,residing in the city of New York, borough of Brooklyn, county ofKings, and State of New York, have invented certain Improvements inCarton-Machines, of which the following is a specification.

This invention relates to machines for folding, gluing, and cutting olfcartons or tubes made from creased paper-board to be used for packingpurposes.

In the present case the machine which embodies this invention takes in astrip of longitudinally -vcreased paper -board, folds it along thecreases, glues together the margins, and then cuts off the cartons inuniform lengths from the strip.

In the accompanying drawings, which serve to illustrate the invention,Figure 1 is a side elevation of the machine, and Fig. 2 a plan thereof.Fig. 3 is an elevation of the delivery endof the machine, seen at theleft in` Figs. 1 and 2; and Fig. 4 is an elevation of the other orreceiving end of the machine. Fig. 5 includes a plan and transversesection of the feed-crank detached. Fig. 6 is a vertical sectional viewtaken transversely through the knife of the cutter at the delivery endof the machine. Fig. 7 is a vertical cross-section of the machinesubstantially at line m7 in Fig. 1. Figs. 8 and 9 are enlarged views ofthe gripper device of the feed mechanism, the former being sideelevation and the latter a cross-section, taken transversely of saidaxis. Fig. 10 shows theblank for the carton. Fig. 11 shows the samepartly folded. Fig. 12 shows the carton completed and. closed by ahinging-strip, and Fig. 13 shows the completed carton expanded. Theselast four figures are designed merely to exhibit the product of themachine. Fig. lelisa perspective View showing a carton with eight sidesconstructed according to this invention. Fig. 15 is an enlargedsectional View of one of the turning devices, and Fig. 16 is an enlargedview of the adjustable guide for the hinging-strip.

The machine as seen in Figs. 1 and 2 takes in a creased strip ofpaper-board of uniform width and any length whatever. The creasesextend. lengthwise, as indicated by the dotf ted lines a' in theblank X.(Seen in Fig. 10.) Usually what is known as corrugated board is used,but any suitable paper-board may be employed for the cartons. As thecreased strip is fedinto the machine the outer iiaps or sides y arefolded in as seen in Fig. 11, and when folded down they are securedtogether by ahinging strip or tape (Seen in Figs. 12 and 13.) Fig. 12shows the flattened carton Y as it emerges from the machine and is cutotf, and Fig. 13 shows the same eX- panded. Obviously there may be morecreases, so that the carton will have a polygonal cross-section, asindicated 'in Fig. 14; but the number Seen in Fig. l0 will usuallysuffice.

In the maohine,1 designates the main frame, the strip o of creasedpaper-board being supplied from the right in Figs. 1 and 2 and moving asit is intermittently fed toward the left in said igures. It will sufficefor the present to say that the intermittent feed device grips the stripd, moves it forward a distance corresponding to the length of a carton,and then releases it and moves back to take a fresh hold. As the stripmoves along the marginal flaps y are gradually turned up and in andfolded down bya series of rotatablymounted turning devices 2, mounted onbearersv 3. These bearers are adjustable laterally, being supported at 4on a slotted bridge-bar 5 on the frame. The turning devices 2 present insuccession increasingly-inclined surfaces to `roller 8, thence over aglue-applying roller 9,

which dips in a glue-fountain 10, and thence down to and through a guide11 and to the folded strip to which it is to be applied. This IOO theglued or gummed hinging-strip z is applied. J ust beyond the point wherethe guide 11 is situated the folded strip d with the hinging-strip zpasses under a heater or drier 13 in the nature of an elongated squaretube of metal in the longitudinal axis of the machine and supplied withsteam through pipes 14 from any source. This heater rests on the stripwhile the lat-ter is stationary between the intermittent feedingoperations, and its function is tovdry the glue or gum used in securingthe hinging-strip. The heater or drier has a slight up-and-down movementsufficient to allow it at the proper time to press rather lightly on thefolded strip and at another time when the strip is being fed along toallow the strip to move freely under it. The steam-supply pipes 14 areso bent or coiled, as seen in Fig. 1, as to permit of this slightup-and-down movement of the heater, and the means for lifting the heatercomprises a cam 15 on a shaft 16 at the delivery end of the machine.This cam bears on an arm 17 on a rock-shaft 18, which has another arm19, that takes under an adjusting-nut on the upper extremity of alifting-rod 20, coupled below to the heater. This rod is embraced by acompressive spring 21 between the heater and a fixed bracket 22, throughwhich the rod 2O extends. In order to be able to raise both ends of theheater simultaneously with the cam 15, this mechanism of the rock-shaft13, arm 19, liftingrod 20, and spring 2l is duplicated at the other (orright hand) end of the heater, and the rock-shafts are rockedsimultaneously by a connecting-rod 23, which couples arms 24 on therespective rock-shafts. The heater 13 may be raised at any timeby handthrough the medium of a camlever 25, coupled to an arm on the rock-shaft18 at the rightin Figs.

1 and 2.

It may be stated here that 26 is the main driving-shaft of the machineand that the glue or gum applying roller 9 is driven therefrom through abelt 27 and suitable pulleys, and the shaft 16 is also driven therefromthrough a link belt 2S and suitable sprocketwheels.

In its passage through the machine the folded strip a is supported on afixed narrow bed 2 9, which is situated directly under the heater and,as shown in Fig. 9, is of the same width as the heater.

The feeding mechanism will now be described, premising that it consistsof grippers, means for opening and closing the latter, and

rmeans for moving the grippers to and fro longitudinally of the machinefor intermittently feeding the carton-strip.

On an upright shaft 30, rotatably mounted in the frame of themachine,Fig.1, and driven from the main shaft 26 through bevel-gears 31,is xed the feed-crank 32, Fig. 5, which has an adjustable wrist 33 tovary the throw of the crank. The feed-crank is a bar slotted to form akeeper-guide for the block forming the base of the wrist, and said blockis made adjustable along said slotted guideway by means of a screw 34,which screws through the block and has a collared bearing at 35. Forrigidity the bar of the crank is fixed in a ring-like band 36. Aconnecting-rod 37 couples the wrist of the crank with the carriage 38 ofthe gripper, Figs. 8 and 9, which latter is slidable on fixed ways 39,extending lengthwise of the machine. The gripper itself is constructedas will now be described. To cross-bars 40 and 41 are secured,respectively, the pairs of upper and lower jaws 42 and 43. The heater 13and bed 29 are situated between the jaws ofthe pairs, as best seen inFig. 9. Between the transverse members of the gripper-carriage 38 arefulcrumed two levers 44, one at each side, and these 1evers are coupledat their outer ends to the lower extremities of draw-bars 45, said barshaving spring-cushioned couplings at their upper ends to the bar 40,carrying the upper jaws 42. At their inner ends the levers 44 haveknuckle-bearings in the ends of the bar 41, carrying the lower jaws 43.With this construction when the bar 41 is pushed upward the lower jawsascend and the upper jaws descend, thus bringing the jaws together onthe carton strip or sheet between them. In order to operate the jaws,the bar 41 extends through and is fixed in the walls of a tubularplunger 46, which is slidable up and down in a casing 47, fixed in thecarriage 3S, the casing being slotted to permit the movement of the bar4l. A spring 48 in the casing depresses the bar 41. The plunger 46 ismoved upward at the proper time to close the jaws, and the latter areheld closed bya cam 49, slidable but non-rotative on a shaft 50,rotatively mounted in the frame. As here shown, the shaft 50 is square.The cam 49 is collared in pendent brackets 5l on the carriage 38, saidbrackets furnishing bearings for the cam, which is merely rotated by theshaft 50. This shaft is driven from the upright shaft 30throughbevel-gears 52.

lt may be explained here that the cams 15 and 49 are so set that theformer holds the heater 13 elevated While the latter is holding thegripper-jaws closed; also, that the crank 32 acts to move the gripperoutward or toward the left in Fig. 1 while the cam'49 is holding thegrippers closed. When the gripper-carriage reaches the end of itsoutward travel, the cam 49 releases the gripper, and simultaneously thecam 15 allows the heater to descend on the carton-strip. The latter nowremains stationary, while the grippers move back or inward to seize thestrip at another point. At the time the carton-strip is fed outward itis protruded beyond the end of the machine, and While held stationarythe carton is cut off by a cutter, which will now be described withespecial reference to Fig. 6.

In the shaft 16 is a crank 53, and the wrist of this crank is coupled bya connecting-rod 54 to a knife-gate 55, mounted to slide up and IOC lIO

down in guides 56 on the frame. This gate carries a knife 57, which cutsor shears the carton from the strip supported on the broad extremity 29aof the bed 29, the knife playing close to the end of the said bed.

In order to hold the carton-strip firmly at the knife while being cut, apresser-foot 58 is provided. The stem of this presser-foot eX- tends upthrough the knife-gate 55, and this stem is embraced by a compressedspring 59 between the said gate and the foot and tending to depress thelatter. On the upper end of the said stem is an adjustable stop-nut 60.The presser-foot bears first on the cartonstrip as the knife descendsand presses thereon yieldingly, as will be readily understood.

Fig. 15 shows the preferred construction of the turning device 2. Theturner is rotatably mounted on an upright stem on a disklike base 2,which latter is rotatably mounted in the bearer 3. The corrugated stripto be folded passes over the disk 2, and the two parts 2 and 2 can turnindependently of each other.

Fig. 16 illustrates more in detail the form and construction ofthe guide11. This guide will have by preference a lip 11 to keep the strip z inplace.

As the strip to be folded passes through the machine and the flaps atits margin are folded over as the strip moves along, being fully foldedover at the advanced end and wholly fiat at the point where the stripenters the machine, it is found that the middle portion of the striptends to curve longitudinally, the upper side being concave. In theconstruction of this machine the bearers 3 are made curved, as may beseen in Fig. 1, so that it will t the curved strip, and thus afford aproper support for same as it passes through the Hap turning or foldingmechanism. This curvature of the bearers terminates at about the pointWhere the hinging and lclosing strip .a is applied.

Having thus described my invention, I claim- 1. In a machine for thepurpose specified, the combination with a cutter, of means for foldingover the flaps of the creased strip a, means for feeding said stripintermittently to the cutter, and means for applying a gummed or gluedstrip 1 over the joint between the folded flaps of the carton-strip asthe latter is fed, of a movable heater for drying said applied strip,and means for moving said heater, substantially as and for tho purposeset forth.

2. In a machine for the purpose specilied, the combination with thecutter, of means for folding over the flaps of the creased strip a as itis moved along, means for applying adhesive material to the strip a,means for applying said strip to the meeting edges of the flaps on thestrip as the latter is moved along, and a heater for drying said strip,of an intermittent feeder for the strip, said feeder comprising amovable upper gripper-jaw an d a movable lower gripper-jaw, means`coupling said jaw for simultaneous action, a reciprocating carriage onwhich said jaws are mounted, a spring for retracting said jaws, a cam,rotatively mounted in said carriage for closing said jaws, and means forrotating said cam during the reciprocation of the carriage,substantially as and for the purpose set forth.

3. In a machine for the purpose set forth, the combination with anintermittentlyoperating cutter, an intermittentlyoperating feeder forthe carton-strip, means for applying an adhesive hinging-strip to themoving carton-strip and means for drying the adhe- Ysive material onsaid strip, said meansl comprising a hollow heater 13, mounted movablyover the bed of the machine, means for supplying steam to said heater,and means for alternately raising and lowering said heater,substantially as set forth.

4. In a machine for the purpose set forth, the combination with areciprocating carriage, of the gripper device thereon, comprising theupper jaws 42, the bar carrying the same, the lower jaws 43, the barcarrying the same, the draw-bars 45, the coupling-levers 44 whereby theupper and lower jaws are made to operate simultaneously, the spring foropening the jaws, a cam rotatively mounted in the carriage and bearingon the lower jaw of the gripper device for closing the jaws of thelatter, and means for rotating said cam uniformly during the movementsof the carriage, substantially as set forth.

5. In a machine for the purpose specified, the combination with themechanisms for folding, feeding and cutting the carton-strip, and meansfor applying an adhesive hingingstrip thereto, of means for pressing anddrying the adhesive material of the last-named strip, said meanscomprising the hollow metal heater 13, the pipes 14 for supplying steamthereto, the rock-shaft 18, having a liftingarm, the lifting-rod 20, thespring 21 on said rod, the arm 17 on the rock-shaft, and the rotatingcam 15, adapted to bear on the arm 17 and lift the heater, substantiallyas set forth.

G. In a machine for the purpose specified, the combination with meansfor feeding forward the strip to be folded, and means for graduallyturning over the marginal flaps on the strip, of the curved bearerssupporting said turning means, substantially as and for the purpose setforth.

7. The combination with the bearer, of a disk-like base 2 rotativelymounted thereon, and a turner or folder 2 rotatively mounted on saidbase, substantially as setforth.

In witness whereof I have hereunto signed my name, this 19th day ofOctober, 1901, in the presence of two subscribing witnesses.

WILLIAM G. CI-IAIIN.

"Witnesses:

GEORGE J. RIEoLnR, Enw. II. Knnsnv.

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